Extremozymes
Presented by
Anika Schielke,
Yifen Tang
&
Dirk Steinmann
Table of content
(1) What are Extremophiles & Extremozymes
(Dirk Steinmann)
(2) Biochemical differences between
extremozymes and normal enzymes
(Anika Schielke)
(3) Technical use (Yifen Tang)
Extremophiles & Extremozymes
Extremophiles:
The "Not-So-Everyday" Microbes!
Extremophiles are organisms who live optimally under
one or more environmental extreme.
Polyextremophiles grow optimally under multiple
extremes.
"They don't just survive, they thrive"
Extremozymes:
Enzymes produced by extremophiles, which,
consequently, function best under the corresponding
extreme condition.
Thermophiles &
Hyperthermophiles
Psychrophiles
Osmophiles
Xerophiles
Exremophiles
Halophiles
Acidophiles
Alkaliphiles
Barophiles
Psychrophiles
Polaromonas vacuolata (Bacteria)
Temp.: Low
Min.: 0°C
Max.: 12°C
Opt.: 4°C
Habitat: Sea-ice
Thermophiles / Hyperthermophiles
Pyrolobus fumarii (Archaea)
Temp.: High
Min.: 90°C
Max.: 113°C
Opt.: 106°C
Habitat: Hot, undersea
hydrothermal vents
Acidophiles
Picrophilus oshimae (Archaea)
pH: low
Min.: -0.06
Max.: 4
Opt.: 0.7
Habitat: Acidic hot springs
Alkaliphile
Natronobacterium gregoryi (Archaea)
pH: high
Min.: 8.5
Max.: 12
Opt.: 10
Habitat: Soda lakes
Barophiles
MT41 Mariana Trench-41 (Bacteria)
Pressure: high
Min.: 500 atm
Max.: > 1000 atm
Opt.: 700 atm
Habitat: Deep ocean sediments
Halophiles
Halobacterium salinarum (Archaea)
Salt (NaCl)
Min.: 15 %
Max.: 32 %
Opt.: 25 %
Habitat: Salterns